Glower about a cut that's turned up in card game (8)
I believe the answer is:
napoleon
'card game' is the definition.
(I know that Napoleon is a card game)
'glower about a cut that's turned up' is the wordplay.
'glower' becomes 'neon' (gas which glows).
'about' is an insertion indicator.
'cut' becomes 'lop' (lopping is a kind of cutting).
'that's turned up' shows that the letters should be reversed in order (in a down clue, letters go up).
'lop' backwards is 'pol'.
'a'+'pol'='apol'
'neon' going around 'apol' is 'NAPOLEON'.
'in' is the link.
(Other definitions for napoleon that I've seen before include "Gold twenty franc piece" , "Cake" , "Extended nap" , "leader in France, once" , "In France, former sovereign" .)